In the neon- and rain-soaked future city of "Xinhai", Lin Mo, a top memory restorer, can repair anyone's broken memory, but he can't piece together the last image of his deceased wife. He exiled himself in a clinic called "The Past" and numbed himself with the memories of others. Until a mysterious woman, Chen Qing, came to ask for help with a "living" and self-resisting memory, demanding that a man's existence be completely erased. After diving into the abyss of this dangerous memory, Lin Mo was horrified to find that the fragments of memory were not only resisting, but also echoing - echoing the shocking secret about his late wife's death that he had long forgotten. Everyone's memory is an isolated island, but the wave will eventually connect everything.
